Finding the Fourth Proportional to 82.50, 113.82 and 49.29

Step by Step Solution

1. Step 1: Write the proportion equation
   82.50 : 113.82 = 49.29 : x
2. Step 2: Convert to fraction form
   82.50/113.82 = 49.29/x
3. Step 3: Cross multiply
   82.50x = 113.82 × 49.29
4. Step 4: Simplify right side
   82.50x = 5,610.19
5. Step 5: Solve for x
   x = 5,610.19/82.50
6. Step 6: Final answer
   x = 68.00